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Volumn 131, Issue 6, 2009, Pages 2141-2150

Redox site-mediated charge transport in a Hg-SAM// Ru(NH 3)6 3+/2+//SAM-Hg junction with a dynamic interelectrode separation: Compatibility with redox cycling and electron hopping mechanisms

Author keywords

[No Author keywords available]

Indexed keywords

AQUEOUS ELECTROLYTE SOLUTIONS; AQUEOUS SOLUTIONS; CHARGE TRANSPORT; CHARGED SPECIES; CURRENT FLOWING; EFFECTIVE CONCENTRATION; ELECTRICAL BEHAVIORS; ELECTRICAL PROPERTY; ELECTROCHEMICAL SYSTEMS; ELECTRON HOPPING; ELECTRON HOPPING MECHANISMS; ELECTRON TRANSPORT; FORMAL POTENTIAL; INITIAL POTENTIAL; INTER-ELECTRODE SPACING; INTERELECTRODE SEPARATION; MECHANISTIC STUDIES; MERCURY ELECTRODES; METAL JUNCTIONS; METAL-MOLECULES; NANO-GAP; NEGATIVE SHIFT; REDOX CYCLING; REDOX POTENTIALS; REDOX SITES; SPACE BETWEEN; TECHNOLOGICAL APPLICATIONS;

EID: 67849095784     PISSN: 00027863     EISSN: None     Source Type: Journal    
DOI: 10.1021/ja804075y     Document Type: Article
Times cited : (23)

References (59)
  • 24
    • 0001318962 scopus 로고    scopus 로고
    • Bard, A. J, Rubinstein, I, Eds, Marcel Dekker: New York
    • Finklea, H. O. In Electroanalytical Chemistry; Bard, A. J., Rubinstein, I., Eds.; Marcel Dekker: New York, 1996; Vol. 19, pp 109-335.
    • (1996) Electroanalytical Chemistry , vol.19 , pp. 109-335
    • Finklea, H.O.1
  • 44
    • 67849096858 scopus 로고    scopus 로고
    • Although mechanically stable junctions could be formed in electrolytes at pH < 4, they were not stable with respect to coalescence of the two mercury drops during electrochemical measurements
    • Although mechanically stable junctions could be formed in electrolytes at pH < 4, they were not stable with respect to coalescence of the two mercury drops during electrochemical measurements.
  • 50
    • 67849116401 scopus 로고    scopus 로고
    • This polymer is a derivative of Nation; that is, it is a perfluoro polymer with side groups containing carboxylate substituents
    • This polymer is a derivative of Nation; that is, it is a perfluoro polymer with side groups containing carboxylate substituents.
  • 58
    • 67849103254 scopus 로고    scopus 로고
    • Previously, Bard and coworkers demonstrated that Nation films incorporating either Cp2FeTMA, Ru(bpy)3 2, or Os(bpy)32+ conducted by a mechanism involving both electron hopping and physical diffusion. The relative contributions of electron hopping and physical diffusion to the overall charge transport process depended on the nature of the incorporated electroactive ion. For Cp2FeTMA, the contribution of the electron-hopping term was less than 6, In this case, Bard and coworkers concluded that, although both electron hopping and physical diffusion occurred, the latter was rate-limiting. For Ru(bpy)32, the contribution of the electron-hopping term was 93, and for Os(bpy)32, it was 57, For all three electroactive ions, Dap, Dphys, and kexd2C/6 were all in the 10-10 cm2 s -1 range. Anson
    • 2+ in Nafion films. They too found electron hopping to be of major importance for the Ru species.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.